/**
 * Copyright 2011 Joao Miguel Pereira
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package eu.jpereira.trainings.designpatterns.behavioral.command.fakes;

import java.util.HashMap;
import java.util.Map;

import eu.jpereira.trainings.designpatterns.behavioral.command.model.DBServerInstanceGroup;
import eu.jpereira.trainings.designpatterns.behavioral.command.model.DAO.DBServerInstanceGroupDAO;
import eu.jpereira.trainings.designpatterns.behavioral.command.model.DAO.DBServerInstanceGroupNotFoundException;
import eu.jpereira.trainings.designpatterns.behavioral.command.spies.SpyDBServerInstanceGroup;

/**
 * A Data Access Object to get a reference to {@link DBServerInstanceGroup}
 * @author jpereira
 *
 */
public class FakeInstanceGroupDAO implements DBServerInstanceGroupDAO {

	
	private static Map<String, DBServerInstanceGroup> instances = new HashMap<String, DBServerInstanceGroup>();
	
	static {
		instances.put("moon", new SpyDBServerInstanceGroup("moon"));
		
	}
	
	/* (non-Javadoc)
	 * @see eu.jpereira.trainings.designpatterns.behavioral.command.model.DAO.DBServerInstanceGroupDAO#findByName(java.lang.String)
	 */
	@Override
	public DBServerInstanceGroup findByName(String groupName) throws DBServerInstanceGroupNotFoundException {
		return instances.get(groupName);
		
	}

}
